I can't agree with you. Of couse, you should think about your forces and understand if you can't solve some problems. But ask any sportman Did he think about to lose before he's become winner) He will respond you it is unacceptable

Thanks Ivan. Your elevation is true on the beginning of the battle. Or beginning sporting competition.Anyone do not accept losing. So anyone trust he's forces.But in the battle.I think, When you lose some things.You should understand your losing.So you can re concentration and re force your powers.If you do not accept your losing in the battle, you do not make any effort. Because you Suppose you will wins with the current way.